#include <iostream>
#include <vector>

using namespace std;

int main() {
  vector<int> v{1, 2, 3};
  int arr[3];
  for (int i = 0; i != 3; ++i) {
    arr[i] = v[i];
  }
  for (auto i : arr) {
    cout << i << " ";
  }
  return 0;
}